French translation: fix some errors and ortho (#513)

_TarkFrench

2019-10-26 c41f6509cf2758945fbc0810ff9d7ab0fc077228

 technic/tools/mining_lasers.lua

@@ -59,7 +59,7 @@
end

local function laser_shoot(player, range, particle_texture, sound)
   local player_pos = player:getpos()
   local player_pos = player:get_pos()
   local player_name = player:get_player_name()
   local dir = player:get_look_dir()